Cancer immunotherapy, and in particular immune checkpoint blockade, has transformed oncology with the potential for durable responses even in patients with metastatic disease. To date, regulatory approvals and clinical trials have focused on the study of these agents in relatively more common tumor types, such as melanoma, non-small cell lung cancer, bladder cancer, and kidney cancer, amongst others.
A group of melanoma experts, joined by three advocacy groups focused on melanoma, has engaged FDA in a public discussion of the challenges of developing new drugs in the refractory setting and the role crossover can play in such trials.
